Which of the following relations are NOT functions? Select all that apply.* (1,3), (3,7), (5,11), (7,15), (9,19) (1,3), (1,7), (5,11), (5,15), (9,19) (-2,4), (-1,1), (0,0), (1,1), (2,4) (2,4), (1,1), (0,0), (1,-1), (2,-4) (6,3), (4,1), (2,1),
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